New Network Trace Capture Started Via Netsh.EXE — Sigma Rule

Rule metadata and linked tags

Author: Kutepov Anton, oscd.community. Source status: test; severity: medium. Source dates: 2019-10-24 / 2023-02-13.

{
  "category": "process_creation",
  "product": "windows"
}

Pinned original Sigma rule · Detection Rule License 1.1

Source SHA-256: bf0d773fd9c8d0e0c9bc749a98df48a98f405982117776292bc983ddcb804f9a

Detection logic

Original source YAML. Source-tag agreement is not proof of complete semantic coverage. This rule has not been compiled for a SIEM backend or validated against live telemetry here.

title: New Network Trace Capture Started Via Netsh.EXE
id: d3c3861d-c504-4c77-ba55-224ba82d0118
status: test
description: Detects the execution of netsh with the "trace" flag in order to start a network capture
references:
    - https://blogs.msdn.microsoft.com/canberrapfe/2012/03/30/capture-a-network-trace-without-installing-anything-capture-a-network-trace-of-a-reboot/
    - https://klausjochem.me/2016/02/03/netsh-the-cyber-attackers-tool-of-choice/
author: Kutepov Anton, oscd.community
date: 2019-10-24
modified: 2023-02-13
tags:
    - attack.discovery
    - attack.credential-access
    - attack.t1040
logsource:
    category: process_creation
    product: windows
detection:
    selection_img:
        - Image|endswith: '\netsh.exe'
        - OriginalFileName: 'netsh.exe'
    selection_cli:
        CommandLine|contains|all:
            - 'trace'
            - 'start'
    condition: all of selection_*
falsepositives:
    - Legitimate administration activity
level: medium

Original YAML and metadata in JSON

False positives

• Legitimate administration activity

Source references

• https://blogs.msdn.microsoft.com/canberrapfe/2012/03/30/capture-a-network-trace-without-installing-anything-capture-a-network-trace-of-a-reboot/
• https://klausjochem.me/2016/02/03/netsh-the-cyber-attackers-tool-of-choice/